package com.yjc.springcloud.service.Impl;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import com.yjc.springcloud.service.PaymentService;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

/**
 * @author shkstart
 * @create 2022-07-24 14:29
 */
@Service
public class PaymentServiceImpl implements PaymentService {
    @Override
    public String paymentInfo_OK(Integer id) {
        return "线程池：" + Thread.currentThread().getName() + " PaymentServiceImpl，id: " + id + "\t O(∩_∩)O成功~~~";
    }

    @HystrixCommand(fallbackMethod = "paymentInfo_TimeOutHandler",
            commandProperties = {@HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds", value = "1000")})
    @Override
    public String paymentInfo_TimeOut(Integer id) {
        int timeNumber = 3;
        try {
            TimeUnit.SECONDS.sleep(timeNumber);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return "线程池：" + Thread.currentThread().getName() + " PaymentServiceImpl，id: " + id + "\t O(∩_∩)O成功~~~" + "耗时：" + timeNumber + " 秒";
    }

    public String paymentInfo_TimeOutHandler(Integer id) {
        return "服务器8001,线程池：" + Thread.currentThread().getName() + " ，id: " + id + " ,系统运行超时或出错，请稍后再试.../(ㄒoㄒ)/失败~~~~~";
    }

    //=========服务熔断
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback", commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled", value = "true"), //是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold", value = "10"), //请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds", value = "10000"), //时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage", value = "60"), //失败率达到60%时失败
    })
    public String paymentCircuitBreaker(@PathVariable("id") Integer id) {
        if (id < 0) {
            throw new RuntimeException("******id 不能负数");
        }
        String serialNumber = IdUtil.simpleUUID();

        return Thread.currentThread().getName() + "\t" + "调用成功，流水号: " + serialNumber;
    }

    public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id) {
        return "id 不能负数，请稍后再试，/(ㄒoㄒ)/~~   id: " + id;
    }
}
